In a GP, if the first term is 4 and the common ratio is 1/2, what is the 6th ter

Practice Questions

Q1
In a GP, if the first term is 4 and the common ratio is 1/2, what is the 6th term?
  1. 0.25
  2. 0.5
  3. 1
  4. 2

Questions & Step-by-Step Solutions

In a GP, if the first term is 4 and the common ratio is 1/2, what is the 6th term?
  • Step 1: Identify the first term (a) of the GP, which is 4.
  • Step 2: Identify the common ratio (r) of the GP, which is 1/2.
  • Step 3: Identify the term number (n) we want to find, which is the 6th term (n = 6).
  • Step 4: Use the formula for the nth term of a GP: a * r^(n-1).
  • Step 5: Substitute the values into the formula: 4 * (1/2)^(6-1).
  • Step 6: Calculate (6-1) which is 5, so we have 4 * (1/2)^5.
  • Step 7: Calculate (1/2)^5, which is 1/32.
  • Step 8: Now multiply 4 by 1/32: 4 * (1/32) = 4/32.
  • Step 9: Simplify 4/32 to get 1/8.
  • Step 10: Convert 1/8 to decimal, which is 0.125.
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